20 Most Recent Hunter Fan Company 5/1/1 Programmable Thermostat - Page 4 Questions & Answers

test solution

if you have an electrical meter this is how to test for bad t-stat heating relay. (this is for the most typical furnace setup in a typical home)first you will need to find and do several things at the furnace.find the MAIN furnace switch and turn off. switch should be mounted outside of furnace on either side of furnace cabinet. remove both furnace doors. find the electrical circuit board, it will be the square thing that almost all wires go to or come from. find the 24v (t-stat) connection screws on the circuit board. they should a row of small phillips screws, and there should be a minimum of 5 screws in a row. the screws will be labeled as follows (not in certain order) R W Y G C . The screws you will be concerned with are R, W, and C. If there is not a C screw you will substitute the C screw for a unpainted part of the furnace cabinet in your testing. The last thing to find is the door switch which should be mounted behind the lower door. It is mounted so when the door is attached the switch is depressed. Use some tape or something to depress the switch without the door on. you will not have enough hand to do it manually during testing. get your electrical meter and your ready to test. always remember that if the Main furnace switch is turned on any of the electrical connections, motors, etc. inside the furnace could be energized at any time.step 1 : with main furnace switch on, both furnace doors removed, and door switch depressed go to your thermostat and turn a minimum of 5 degrees higher than ambient. if t-stat isnt on then something you did is wrong. check switches.2: with newer t-stats there can be a delay. so wait 5 minutes then go to furnace. 3: put electrical meter in AC and in correct range if you have a cheapo meter. you will be reading 24v so correct range is the closest to 24v but must be above 24v. take your leads and put one on circuit board screw labeled R, other lead on C. you should read 24v or similar. minimum voltage should be about 22v. anything less than 20v there is a problem far before your thermostat. if you read 24v move on.4: take your leads and put them on the W screw (heat) and C screw (common24v). You also should read 24v. If you get a reading less than 20v or no reading at all then you either have a bad thermostat or bad thermostat wire.

First make sure that your heating system is on (gas turned on if applicable). Check the unit for any error messages. My furnace has a blinking LED for trouble-shooting. However, the typical issues for it are: blocked air inlet and burner ignite the gas (alternatively, pilot light unlit). Once, the problem has been with the circuit board but that failed in the summer. Make sure the circuit breaker is on and that the cover of the furnace is fully seated. (This can be an issue after changing the filter.)

Next change the batteries if they are low. (This model needs new batteries every 30 days or so since it doesn't use AC power.) Make sure that the thermostat is set for heat. If this is a replacement thermostat, double-check that the wires were connected to the correct spots. (You should have labeled these when the old thermostat was removed.) Tighten all of the terminal screws. Use a unbent paper clip to press the reset button on the thermostat (just below and to the right of the up/down arrows). If the furnace works and the above do not solve the problem, replace the thermostat.

The manual for the 44100b is available here: http://www.hunterfan.com/uploadedFiles/Support/Owner_Manuals/44100.pdf .

I hope this helps.

Cindy Wells

Conventional heating, air conditioning and heat pump thermostat wiring labels, wire color codes and the corresponding function description: Terminal
Designation Wire
Color Function
Description Rh Red 24 Volt Hot for Heating Rc Red 24 Volt Hot for Cooling Y1 Yellow First Stage Cooling Y2 Blue Second Stage Cooling G Green
Grey * Energizes Indoor Fan W1 White Energizes First Stage Heat W2 Black Energizes Second Stage Heat O Orange Heat Pump
Reversing Valve
Energized In Cooling B Brown Heat Pump
Reversing Valve
Energized In Heating C Brown** 24 Volt Neutral
(Common) leg

Hope this helps
Tom Miller
Broadcast Eng