Gas fire thermostat locking up, spikes?
 

I have a gas fire at work controlled by an external panel with a timer and a
thermostat, it is on a standard plug.

Occasionally the fire will not turn on or gets stuck on and becomes OK again
if I switch the plug off and back on.

I believe this could be down to the other equipment on the ring main, much
of it has thermostats and relays, is this correct.

Do need some sort of suppression? There is none apparent. The place I bought
the heater from suggested one of those metal ring things with the wire into
the panel wrapped around it a couple of times, does this sound right?

It has anti frost protection but as it is I daren't leave it powered as I
often get there on a Monday morning and the place is like a frigging sauna
because it is stuck on.

Any input appreciated.

Gas fire thermostat locking up, spikes?
 

R D S wrote :
I have a gas fire at work controlled by an external panel with a timer and a
thermostat, it is on a standard plug.

Occasionally the fire will not turn on or gets stuck on and becomes OK again
if I switch the plug off and back on.

I believe this could be down to the other equipment on the ring main, much of
it has thermostats and relays, is this correct.

Quite possibly.


Do need some sort of suppression? There is none apparent. The place I bought
the heater from suggested one of those metal ring things with the wire into
the panel wrapped around it a couple of times, does this sound right?

A ferrite toroid - that would help. Alternatively you could get a plug
in filter/suppressor which looks similar to a short mains extension
lead, but check the rating. Better is to suppress the source of the
noise itself.

It has anti frost protection but as it is I daren't leave it powered as I
often get there on a Monday morning and the place is like a frigging sauna
because it is stuck on.

Any input appreciated.

Could you use a cheap plug in timer to disable it over the weekend?

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

Gas fire thermostat locking up, spikes?
 

R D S wrote:
I have a gas fire at work controlled by an external panel with a timer and a
thermostat, it is on a standard plug.

Occasionally the fire will not turn on or gets stuck on and becomes OK again
if I switch the plug off and back on.

I believe this could be down to the other equipment on the ring main, much
of it has thermostats and relays, is this correct.

IMO - no.

It should have internal suppression, and not lock up under any
circumstances at all.

Gas fire thermostat locking up, spikes?
 

"Harry Bloomfield" wrote in message
...
R D S wrote :
I have a gas fire at work controlled by an external panel with a timer
and a thermostat, it is on a standard plug.

Occasionally the fire will not turn on or gets stuck on and becomes OK
again if I switch the plug off and back on.

I believe this could be down to the other equipment on the ring main,
much of it has thermostats and relays, is this correct.

Quite possibly.


Do need some sort of suppression? There is none apparent. The place I
bought the heater from suggested one of those metal ring things with the
wire into the panel wrapped around it a couple of times, does this sound
right?

A ferrite toroid - that would help. Alternatively you could get a plug in
filter/suppressor which looks similar to a short mains extension lead, but
check the rating. Better is to suppress the source of the noise itself.

It has anti frost protection but as it is I daren't leave it powered as I
often get there on a Monday morning and the place is like a frigging
sauna because it is stuck on.

Any input appreciated.

Could you use a cheap plug in timer to disable it over the weekend?


Thats a good idea, although I would like the frost protection, we have a few
machines which dont like to freeze.

I have a good idea of the sources of the noise, can I suppress these at the
plug?

Gas fire thermostat locking up, spikes?
 

R D S was thinking very hard :
Could you use a cheap plug in timer to disable it over the weekend?


Thats a good idea, although I would like the frost protection, we have a few
machines which dont like to freeze.

I have a good idea of the sources of the noise, can I suppress these at the
plug?

If the sources of noise plug in, the they can certainly be suppressed
at their plugs.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

Gas fire thermostat locking up, spikes?
 

"Ian Stirling" wrote in message
...
R D S wrote:
I have a gas fire at work controlled by an external panel with a timer
and a
thermostat, it is on a standard plug.

Occasionally the fire will not turn on or gets stuck on and becomes OK
again
if I switch the plug off and back on.

I believe this could be down to the other equipment on the ring main,
much
of it has thermostats and relays, is this correct.

IMO - no.

It should have internal suppression, and not lock up under any
circumstances at all.

The supplier of the heater did suggest that the fitters should have used
suppression.
Do you think adding suppression in the form of one of those ferrite rings
should be enough?

With the price of gas these days I want to get it right and not have the
bloody thing getting stuck on.