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Spa Heater (Laars) Won't Stay On
Hi Brent, hope you are having a nice day On 07-Dec-03 At About 06:04:07, Brent M. wrote to Brent M. Subject: Spa Heater (Laars) Won't Stay On BM From: "Brent M." BM All, BM Thanks in advance for whatever help you can give. BM Bottom line: My Laars EG-125 gas heater will ignite only briefly BM before shutting off. The heater light is on, it has a new pressure BM switch, new circuit board, new 2-speed pump, I have removed the BM filter and cleaned the jets. BM The two ways I can get it to turn on a 1. Flip it off and then BM back on 2. "Bump" the heater or heater pipes with my hand These two BM methods will make it fire for about 3-10 seconds before it turns BM back off. BM What could it be? Where do I start? BM Here's some additional background info if you are interested: BM It is a 500 gal Catalina Boca Grande spa with a brand new Dura-glass BM 2-speed, 240 volt pump. I just replaced the orginal RC-4 circuit BM board with a BL-40 universal board. The pump starts and runs fine. BM The problem is the heater. BM My heater is a Laars EG-125 with a recently replaced pressure switch. BM After the pressure switch was replaced the heater worked fine for BM a couple of hours. Now it will only work (and even then only BM briefly) if I hit it with my hand or flip the on/off switch. BM Thinking that maybe there was not enough water pressure to make it BM fire, I removed the filter and removed all the jet nozzles to make BM sure they were not blocked. They were partially blocked with rust BM particles so I cleaned them out. I replaced the jet nozzles back in BM their places and fired up the spa. It then heated to 110 degrees BM with thermostat turned all the way up! I turned it off and then BM restarted it the next day. It now will only ignite if I turn the BM heater off and then back on or hit it with my hand. It only ignites BM for 2-5 seconds before shutting down again. Don't you think you should call someone who knows what they are doing to look at it? you have practically rebuilt it and you still have the problem. you would have spent less money had you called a pro in the first place. -= HvacTech2 =- ... "After they make styrofoam, what do they ship it in?" - s.w. ___ TagDude 0.92á+[DM] ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++ spam protection measure, Please remove the 33 to send e-mail |
#2
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Spa Heater (Laars) Won't Stay On
Hi Brent, hope you are having a nice day On 07-Dec-03 At About 09:08:05, Brent M. wrote to Brent M. Subject: Spa Heater (Laars) Won't Stay On BM From: "Brent M." BM You have a good point and I really appreciate your response. I only BM wish I could find someone competent. BM I have had techs here five times to look at the system. The most BM recent problem was the pump's hi-speed not engaging. The tech BM replaced the circuit board ($300.00) and it still didn't work. BM Another $415.00 later he told me that he found the problem after BM all--he had originally hooked up the wrong power wire to the hi-speed BM lug on the pump. While here he next looked at my heater as it was BM not engaging on low speed. He replaced the pressure switch and it BM worked for several minutes. By the next day it didn't work once BM again. And here I sit. BM I'm so frustrated with the incompetence of my local spa place here in BM Northern Va that I'm trying to see what I can do. Can I call BM someone other than a "pool and spa place" to repair this type of BM thing? I'm ready to fill in the spa and stop wasting $$ and time BM trying to fix it. call a local heating company to check it for you. they should be able to repair it. -= HvacTech2 =- ... Of course there's a God. What else explains Speedos? ___ TagDude 0.92á+[DM] ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++ spam protection measure, Please remove the 33 to send e-mail |
#3
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Spa Heater (Laars) Won't Stay On
All,
Thanks in advance for whatever help you can give. Bottom line: My Laars EG-125 gas heater will ignite only briefly before shutting off. The heater light is on, it has a new pressure switch, new circuit board, new 2-speed pump, I have removed the filter and cleaned the jets. The two ways I can get it to turn on a 1. Flip it off and then back on 2. "Bump" the heater or heater pipes with my hand These two methods will make it fire for about 3-10 seconds before it turns back off. What could it be? Where do I start? Here's some additional background info if you are interested: It is a 500 gal Catalina Boca Grande spa with a brand new Dura-glass 2-speed, 240 volt pump. I just replaced the orginal RC-4 circuit board with a BL-40 universal board. The pump starts and runs fine. The problem is the heater. My heater is a Laars EG-125 with a recently replaced pressure switch. After the pressure switch was replaced the heater worked fine for a couple of hours. Now it will only work (and even then only briefly) if I hit it with my hand or flip the on/off switch. Thinking that maybe there was not enough water pressure to make it fire, I removed the filter and removed all the jet nozzles to make sure they were not blocked. They were partially blocked with rust particles so I cleaned them out. I replaced the jet nozzles back in their places and fired up the spa. It then heated to 110 degrees with thermostat turned all the way up! I turned it off and then restarted it the next day. It now will only ignite if I turn the heater off and then back on or hit it with my hand. It only ignites for 2-5 seconds before shutting down again. |
#4
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Spa Heater (Laars) Won't Stay On
Additional info: when I turn the thermostat up or down, I hear the "click"
of the relay opening and closing. Thermo would seem to be working... "Brent M." wrote in message news:ZONAb.36433$dO2.35610@lakeread03... All, Thanks in advance for whatever help you can give. Bottom line: My Laars EG-125 gas heater will ignite only briefly before shutting off. The heater light is on, it has a new pressure switch, new circuit board, new 2-speed pump, I have removed the filter and cleaned the jets. The two ways I can get it to turn on a 1. Flip it off and then back on 2. "Bump" the heater or heater pipes with my hand These two methods will make it fire for about 3-10 seconds before it turns back off. What could it be? Where do I start? Here's some additional background info if you are interested: It is a 500 gal Catalina Boca Grande spa with a brand new Dura-glass 2-speed, 240 volt pump. I just replaced the orginal RC-4 circuit board with a BL-40 universal board. The pump starts and runs fine. The problem is the heater. My heater is a Laars EG-125 with a recently replaced pressure switch. After the pressure switch was replaced the heater worked fine for a couple of hours. Now it will only work (and even then only briefly) if I hit it with my hand or flip the on/off switch. Thinking that maybe there was not enough water pressure to make it fire, I removed the filter and removed all the jet nozzles to make sure they were not blocked. They were partially blocked with rust particles so I cleaned them out. I replaced the jet nozzles back in their places and fired up the spa. It then heated to 110 degrees with thermostat turned all the way up! I turned it off and then restarted it the next day. It now will only ignite if I turn the heater off and then back on or hit it with my hand. It only ignites for 2-5 seconds before shutting down again. |
#5
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Spa Heater (Laars) Won't Stay On
You have a good point and I really appreciate your response. I only wish I
could find someone competent. I have had techs here five times to look at the system. The most recent problem was the pump's hi-speed not engaging. The tech replaced the circuit board ($300.00) and it still didn't work. Another $415.00 later he told me that he found the problem after all--he had originally hooked up the wrong power wire to the hi-speed lug on the pump. While here he next looked at my heater as it was not engaging on low speed. He replaced the pressure switch and it worked for several minutes. By the next day it didn't work once again. And here I sit. I'm so frustrated with the incompetence of my local spa place here in Northern Va that I'm trying to see what I can do. Can I call someone other than a "pool and spa place" to repair this type of thing? I'm ready to fill in the spa and stop wasting $$ and time trying to fix it. Brent "HvacTech2" wrote in message ... Hi Brent, hope you are having a nice day On 07-Dec-03 At About 06:04:07, Brent M. wrote to Brent M. Subject: Spa Heater (Laars) Won't Stay On BM From: "Brent M." BM All, BM Thanks in advance for whatever help you can give. BM Bottom line: My Laars EG-125 gas heater will ignite only briefly BM before shutting off. The heater light is on, it has a new pressure BM switch, new circuit board, new 2-speed pump, I have removed the BM filter and cleaned the jets. BM The two ways I can get it to turn on a 1. Flip it off and then BM back on 2. "Bump" the heater or heater pipes with my hand These two BM methods will make it fire for about 3-10 seconds before it turns BM back off. BM What could it be? Where do I start? BM Here's some additional background info if you are interested: BM It is a 500 gal Catalina Boca Grande spa with a brand new Dura-glass BM 2-speed, 240 volt pump. I just replaced the orginal RC-4 circuit BM board with a BL-40 universal board. The pump starts and runs fine. BM The problem is the heater. BM My heater is a Laars EG-125 with a recently replaced pressure switch. BM After the pressure switch was replaced the heater worked fine for BM a couple of hours. Now it will only work (and even then only BM briefly) if I hit it with my hand or flip the on/off switch. BM Thinking that maybe there was not enough water pressure to make it BM fire, I removed the filter and removed all the jet nozzles to make BM sure they were not blocked. They were partially blocked with rust BM particles so I cleaned them out. I replaced the jet nozzles back in BM their places and fired up the spa. It then heated to 110 degrees BM with thermostat turned all the way up! I turned it off and then BM restarted it the next day. It now will only ignite if I turn the BM heater off and then back on or hit it with my hand. It only ignites BM for 2-5 seconds before shutting down again. Don't you think you should call someone who knows what they are doing to look at it? you have practically rebuilt it and you still have the problem. you would have spent less money had you called a pro in the first place. -= HvacTech2 =- .. "After they make styrofoam, what do they ship it in?" - s.w. ___ TagDude 0.92á+[DM] ++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++ spam protection measure, Please remove the 33 to send e-mail |
#6
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Spa Heater (Laars) Won't Stay On
The heater is 16+ years old and the header has rust that flakes off. I may
need to replace the heater altogether. On the rare occasion that it works, it works beautifully. I'm limping along on the hope that it is something simple like a loose connection, plugged pipe or something and I can avoid $650 for a new heater plus whatever it costs to install ($250??). wrote in message ... On Sun, 7 Dec 2003 19:28:35 -0500, "Brent M." wrote: You have a good point and I really appreciate your response. I only wish I could find someone competent. I have had techs here five times to look at the system. The most recent problem was the pump's hi-speed not engaging. The tech replaced the circuit board ($300.00) and it still didn't work. Another $415.00 later he told me that he found the problem after all--he had originally hooked up the wrong power wire to the hi-speed lug on the pump. While here he next looked at my heater as it was not engaging on low speed. He replaced the pressure switch and it worked for several minutes. By the next day it didn't work once again. And here I sit. I'm so frustrated with the incompetence of my local spa place here in Northern Va that I'm trying to see what I can do. Can I call someone other than a "pool and spa place" to repair this type of thing? I'm ready to fill in the spa and stop wasting $$ and time trying to fix it. Is it possible that you have some underlying problem? Why is there so much rust? It sounds to me like you may need a major rebuild. BB |
#7
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Spa Heater (Laars) Won't Stay On
Does your heater have a millivolt gas valve?
Many heaters have an interlock with the switch for the pump so that unless the pump is turned on the heater can't ignite. I believe that the Teledyne Laars heater has a series loop with one of two high limit switches, a pressure switch, an on/off switch, and a thermostat all in series. If any of these are performing marginally you could have the problem you describe. The gas valve could be defective or the pilot generator could be generating a lower than desired voltage. The switch contacts in the pump control can get dirty or become oxidized. With the millivolt gas valves there is so little current (dry switching) that the contacts don't tend to be self cleaning. This interlock usually exists in addition to any pressure switch that may be in the heater. Do not attempt to bypass any of the safety devices if gas can be ignited. It will only take seconds to melt a hole in your heat exchanger if water isn't flowing. Then you will buy a new heater because the cost of a new heat exchanger (with all of the needed installation components) will exceed what a new heater will cost. Boden Brent M. wrote: You have a good point and I really appreciate your response. I only wish I could find someone competent. I have had techs here five times to look at the system. The most recent problem was the pump's hi-speed not engaging. The tech replaced the circuit board ($300.00) and it still didn't work. Another $415.00 later he told me that he found the problem after all--he had originally hooked up the wrong power wire to the hi-speed lug on the pump. While here he next looked at my heater as it was not engaging on low speed. He replaced the pressure switch and it worked for several minutes. By the next day it didn't work once again. And here I sit. I'm so frustrated with the incompetence of my local spa place here in Northern Va that I'm trying to see what I can do. Can I call someone other than a "pool and spa place" to repair this type of thing? I'm ready to fill in the spa and stop wasting $$ and time trying to fix it. Brent "HvacTech2" wrote in message ... Hi Brent, hope you are having a nice day On 07-Dec-03 At About 06:04:07, Brent M. wrote to Brent M. Subject: Spa Heater (Laars) Won't Stay On BM From: "Brent M." BM All, BM Thanks in advance for whatever help you can give. BM Bottom line: My Laars EG-125 gas heater will ignite only briefly BM before shutting off. The heater light is on, it has a new pressure BM switch, new circuit board, new 2-speed pump, I have removed the BM filter and cleaned the jets. BM The two ways I can get it to turn on a 1. Flip it off and then BM back on 2. "Bump" the heater or heater pipes with my hand These two BM methods will make it fire for about 3-10 seconds before it turns BM back off. BM What could it be? Where do I start? BM Here's some additional background info if you are interested: BM It is a 500 gal Catalina Boca Grande spa with a brand new Dura-glass BM 2-speed, 240 volt pump. I just replaced the orginal RC-4 circuit BM board with a BL-40 universal board. The pump starts and runs fine. BM The problem is the heater. BM My heater is a Laars EG-125 with a recently replaced pressure switch. BM After the pressure switch was replaced the heater worked fine for BM a couple of hours. Now it will only work (and even then only BM briefly) if I hit it with my hand or flip the on/off switch. BM Thinking that maybe there was not enough water pressure to make it BM fire, I removed the filter and removed all the jet nozzles to make BM sure they were not blocked. They were partially blocked with rust BM particles so I cleaned them out. I replaced the jet nozzles back in BM their places and fired up the spa. It then heated to 110 degrees BM with thermostat turned all the way up! I turned it off and then BM restarted it the next day. It now will only ignite if I turn the BM heater off and then back on or hit it with my hand. It only ignites BM for 2-5 seconds before shutting down again. Don't you think you should call someone who knows what they are doing to look at it? you have practically rebuilt it and you still have the problem. you would have spent less money had you called a pro in the first place. -= HvacTech2 =- .. "After they make styrofoam, what do they ship it in?" - s.w. ___ TagDude 0.92á+[DM] ++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++ spam protection measure, Please remove the 33 to send e-mail |
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