The pattern on a properly functioning RV furnace should be (1) blower fan comes on for as much as 30 seconds (allowing the electronics to confirm good air flow), (2) clicking of the ignitor, (3) WHOOSH/RUMBLE of the burner igniting, and then (4) AHHHHHHhhhhhhhh as the warm air ...
If Blower Motor comes on at R and G, Heating at R and W, and Cooling at R and Y, then the control board can likely be saved. This simple but thorough process is an important step in ensuring that your furnace is operating correctly. Step 6: Test Control Board Output Power Finally, ...
Blower motor To test the blower motor on its own, you will need a 12V power supply like an RV or car battery. Next, place the test leads to join the positive and negative wires of the blower motor to the positive and negative terminals of the battery. The fan should start immediately....
In using this design, the goal is to replace the controller currently being used, which is aWhite Rodgers 5D51-90 fan and limit controlinserted 8” into the heat chamber. The 5D51-90 fan and limit control is made up of two bimetallic switches, a limit swi...
G mounted on the terminal strip 56 controls the operation of a blower fan for the furnace 10, as is conventional, and a terminal Y on the strip 56 provides a connection for cooling operation of the outside heat exchanger unit 24. A thermostat 62 is disposed in a space to be temperature...
The indoor coil 10 is located within a housing 11 which also contains a furnace 13 and an air circulating blower or fan 15. As applied to a residential installation, a return duct 17 delivers air from the enclosed space to the inlet side of blower 15. The air passes up through the heat...
7 FILTERS 6 START-UP, ADJUSTMENT, AND SAFETY CHECK .8-9 Removing Blower Wheel Support .8 Operational Checkout .8 Combustion Check 8-9 Fan Adjustment Check .9 Limit Control Check .9 For Year-Round Air Conditioning .9 Heating 9 Cooling 9 Constant Blower Switch .9 MAINTENANCE 9-10 General ...
FAN (blower speed) Using the arrows, increase or decrease the blower speed. You can choose from six preselected speeds. This selection is very important for the modes COOL, MANU, or CIRC. There is a choice of 6 different speeds. Under the COOL mode, the speed selected is the speed at ...