I'm thinking the heat blinking means its calling for heat and its not completed the Rh to W1 circuit yet. Once the circuit closes, the blinking heat will go steady....usually. Or if the thermostat is satisfied, it will stay steady and not blink...
I guess your thermostat could blink whether its mode is satisfied or not because I am not familiar with that particular stat. You forgot to say if the furnace is gas or electric heat, so if its gas, it sounds like it could have misfired and locked itself out. Go to the furnace, and cycle the power switch that should be mounted on the side. This will reset the controller and give it another attempt at firing correctly. If it continues to lock our after several attempts and you still have no heat, you have no choice but to call for service.
If its an electric furnace, there isn't much you can do but call a technician for a service call.
SOURCE: MHU 75 Model Mr. Heater
The roll out switch is a small disc shaped part about the size of a nickle. There may be more than one. anyway there is a button shaped like a small peg in the center if it, push it in and it should stay in. You may need to re examine the limit switch, because this is what it sounds like. they are rated for a set temperature, so your application may need a higher temp. A simple way to check parts like these is to by-pass them by taking the wires off the part and connecting them together. If this solves the problem, that it. My only concern is that this is a new installation, and maybe its not venting adequately or its burning up all the usable air in the room. That's why most of these parts are on the equipment.
SOURCE: honeywell rth230b won't shut off heat
Sounds like a relay sticking. Possibly in the thermostat or possibly the furnace relay at the furnace. The next time it happens, unplug the thermostat from the wall. If the furnace still runs then it's the furnace relay.
Hope that helps...
Geno
SOURCE: Goodman GMS90904CXA Wont ignite, light blinks 3 times
Ok, you either have a inducer fan issue or a pressure switch issue or a plugged vent pipe. The inducer turns on to establish a draft for the exhaust. If it is not working you will get this error code. If the pressure switch does not sense pressure caused by the inducer, it will give this code. If either the intake pipe or exhaust pipe is blocked (even y just a little) it will give you the same error code. If the condensate hose or receptical is plugged, again it will give you this error code. Good Luck!
SOURCE: 1993 goodman status light 4 times blinking
I have a goodman GMP075-3 that won't turn on. I think it is the pressure switch since I do not have a vent blockage. What is a venter and where can I find it??
SOURCE: Torpedo heater wont stay lit.
Do you have the serial number or the manufacture date? There are some design changes and I would need to know the year of manufacture to assist accurately. Usually it is a relay or the thermocouple connection that will affect the unit staying lit.
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