Question about Toyotomi Heating & Cooling
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Posted on Jan 02, 2017
Cleaning the flame sensor has nothing to do with blower motor not turning on. You either one of the following problems 1 bad cap for motor. 2 bad motor. 3 bad limit on blower housing or 4 a bad board. You will need a volt meter to check for these problems. Try seeing if the fans runs with unit of and fan switch turned to on. Also does motor hummmm. Is motor cage free ( can check by manually turning) If motor doesnt humm and the cage is free wheeling then you will need to find out if you have power going to the motor. If you find out that you do then you will need to change blower motor. If you do not have power then you will need to check limit with continuity tester on volt meter. If that checks fine only 1 thing can be wrong and that is the board.
Posted on Feb 16, 2009
the fan you hear come on at a call for heat is most likely just the inducer motor. the click you hear is probably the relay for the hot surface ignitor which should glow red, then in turn ignite the main burners. your going to have to determine if the ignitor is coming on. if it isnt the ignitor is bad and will need to be replaced. if it comes on and than shuts off after a few seconds the ifc board is probably at fault
Posted on Apr 10, 2009
Short answer, yes. However you could have another problem. Replace the thermocouple that keeps the pilot lit. You can get a universal one at any good hardware or farm store. Make sure the new thermocouple is well into the pilot flame. If the blower knocks out the pilot flame again, I would be suspecting cross contamination from a crack in the heat exchanger. As the exchanger heats up, it may be causing a small crack to open and allows the blower to extinguish the flame. It may also be causing a leak of Carbon Monoxide into the heated room air. I would get it checked out very quickly.
Posted on Mar 07, 2010
SOURCE: my siemens rev 16 hydronic
Always look at the bottom of the screen at the 24 hr clock to see what time the thermostat is programmed to come on and off.You can then instantly see if your heater
should be on either T*& temp or TC temp. if the heating is not on when the time clock
indicates that it should check to see that the time is set correctly.
Also check out the battery voltage.Is it low or OK.
For Rev 16 manual.Click on the link mentioned below:--
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.
Posted on Jul 22, 2010
SOURCE: I have a few issues
Hi, look 9/10 problems are to do with either the thermistor or thermostat, Especially when the faults is intermittent, and sporadic.or perhaps the Main Controller. Always check the Gas flow & regulator diaphragm is OK..too..
The fact that it will start sort of "Proves" it somewhat it is just that it will not stay lit and is hard to start, now both of these can be related back to the thermostat &/or sensor being faulty.
All one can really do is check the Input sensors are working and check that the output devices, or signal to them are, working correctly too.
Always check the Flame sensor too, that's the blind end copper hose like thing that sits in the Flame, when it's Pilot light is lit.
Often it is sensor related, but if these prove to be OK, then the next thing to suspect is the Main Controller, which may contain the Thermostat too, but again replacement is the only option..
It sort works by when started the "Brain" checks all safety sensors and see if all are OK, if all are OK the gas valve will open, the Igniter will light the gas a Flame will be present in the Pilot light, and the Flame sensor that "Sees" a flame and continues to keep the gas going, it now checks the thermostat and if the desired temperature is under what is set, if it is then the gas flow ramps up, Burners go and the fan kicks in and hot air is distributed around. This continues until the Temperature sensors signal the thermostat that an equilibrium has been reached and the burners lessen or go Off until the temperature again drops to below the set threshold and the cycle starts again.
However this website below explains how to repair these type of furnace and should be a great help.
Go to this Mater Google link below and there are a number of self help sites to assist more.
Copy & paste to address bar.
Posted on Dec 18, 2010
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