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We have a Altech Programmable Room Thermostat Model No. ALTHC014 and our boiler will not switch off even though the little fire symbol is not showing

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: require room thermostat for ferroli combi boiler

Get a Ferroli wireless programmable room stat. City plumbing supplies can get hold of them but you'd be looking at approx £130. Part number 30800009. No wiring involved, the receiver connects to the boiler pcb. Had same problem but now fine.

Posted on Mar 12, 2009

  • 29 Answers

SOURCE: Blinking symbol similar to an asterik with a

Cooling mode. supposed to resemble a snowflake

Posted on Jun 23, 2009

  • 832 Answers

SOURCE: boiler won't fire even though the pilot is lit

Check if the ignition plug works. Upon putting your boiler on, a spark will normally trigger the
the firing. Then, check the ignition transformer if it works. Check the secondary voltage which is between 15000 to 20000 volts to trigger the ignition plug and the boiler to fire. If no spark,
have your ignition transformer replaced to make it work.

Posted on Sep 21, 2009

Therinnaiguy
  • 1420 Answers

SOURCE: I have a Honeywell Thermostat CM67NG The flame

You may have a broken thermostat wire. Disconnect the wires from the thermostat and please note what colors are hooked to which terminals. Cross the R and W wires and see if your heating system turns on. If it does not, you have a broken wire or bad connection at the heating system. If it does start, you have a bad thermostat or bad connection at the thermostat.

Posted on Nov 30, 2009

  • 1 Answer

SOURCE: Even after replacing the battery, the programmable

Turn control to off. Remove the batteries for at least one hour. If the display message still reads "bat lo", leave control off, batteries out, and disconnect the red wire on back and wait another hour. Reconnect red wire, put new batteries in and turn system on. It's like a reboot.

Posted on Apr 13, 2010

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1 Answer

Thermostat is not switching on boiler.


There are many ways for a hot water boiler to be controlled. One of them is to have an 'on-board' aqua-stat that cycles the boiler burners to maintain water temp set-point and the space thermostat controls only the circulating pump. There is no way of knowing if yours is set up this way, but try turning the thermostat on and off and see if the circulating pump cycles with it.

Volumns can be written on boiler control but with the limited information provided we can only guess.

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I need programming info for an Altech model ALTHC001 central heating and hot water programmer


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Here you go, this is pretty much identical to the Altech unit you're describing (Salus RT500RF Manual (SALR503) 531ESALR50310A95), I have the Altech ALTHC014 too, I have checked them against each other. Hope this helps, this is probably why you can't find the Altech manual, as the Salus one is the same and they haven't bothered rebranding this manual to Altech.

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Alpha boiler - wireless programmer failing


it sounds like the problem may be in the boiler and not the controller itself. Do you kno which is are the two wores that are the r-w for the thermostat take and purt them together and see if the boiler stays on or shuts off like it does with the thermostat. If it does then replace the reciever. If it doesn't then you have another problem. Good Luck

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I have a Honewell CM921/927 wireless programmable room thermostat that is operating the combi boiler in AUTO mode even when the time setting is meant to be off (no output). The target temp is 20 deg and...


If the room is at the set temperature even when the rad are warm the boiler is doing its job. It takes steel rads up to an hour to cool down so if they stay warm to the touch that is normal.It takes steel rads a long time to heat up when they get cold so its cheaper to let them not get real cold.I was told not to put a programmable thermostat on our boiler simply because it takes a lot of gas to bring your house up even two degrees. I run a non programmable and set our heat at 72 degrees and do not touch it all winter. There should be a water shut off on each rad so if you want your bedroom cooler just shut that shut off on that rad off.

Apr 10, 2017 | Honeywell Heating & Cooling

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Gas Boiler will supply /fire up to supply Central heating When Room thermastat turned up and switched to Heating and Hot water. When on Hot water Only will not fire up even though thermostat on hot water...


most likly or a shorted wire unhook the wire from the boiler see if it stops then if it's still is on it's in the boiler if off try unhooking it at the t-stat on the heater this should narrow it down for you dan

Jul 19, 2008 | Heating & Cooling

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