|
|
Close Help | ||||||||||||||
|
|
|
Close Help | ||||||||||||||
| ||||||||
|
|
Whitfield Trouble ShootingThis help file will help Diagnose most Whitfield pellet stoves.The flow charts and are for Advantage II, II-T and plus stoves. but the basic info will help with ALL pellet stoves. Warning, this is
for your information only! go here for Maintenance tips
Wire
diagrams
(large 3mg file has hand written notes) Quest only NOT QUEST PLUS wire diagram and limit switch wires
The #1 reason a pellet stove will shut down after 10-20
minutes after start up is:
Function: To monitor the temperature of exhaust gases and is designed to shut down the stove if it does not sense the heat of the fire. This switch is not electrically limited to any one system. It is a surface mounted switch located on the “throat” of the Combustion Blower housing. This normally “OPEN” switch is rated to close at 140 dg F (+ / - 6 dg). It resets to “OPEN” when temperatures drop below 110 dg F (+ / - 5 dg). NOTE: Power loss to the Fuel Feed System will only stop the Auger Motor and pellet feed. The stoves Combustion and Room Air Blowers will still receive power until an exhaust temperature reading below 110°F. The Low Limit switch can fail either in the “OPEN” or “CLOSED” position. Both failures have distinctive indications of failure. ♦ An “OPEN” failure is indicated by the inability of the stove to run longer than 30 min. The control board timer completes its cycle but the Low Limit switch fails to close when hot gases go undetected through the Combustion Blower housing exhaust. The stove restarts with the push of the START touch pad but shuts down again after 30 min. ♦ A “CLOSED” failure is indicated by the continuous fan operation after the stove’s fire has gone out and the stove is cool. By removing the power cord from the wall all fans stop but immediately start when the stove is plugged back in. Both failures require the replacement of the switch. #1 reason auger motor will not operate is:
Function: Monitors exhaust movement out of the stove to determine if restriction to air flow exists. Most times this system fails not because of the switch but because the hose is broken or the Port the hose connects to to clogged at the combustion blower. Most times this system fails NOT because of the switch but because the hose is broken or the Port the hose connects to the stove (NOT TO THE SWITCH) is clogged at the combustion blower or where the port is located on your stove. Some locations the hose is connect to are:
This switch has no electrical connection to the Combustion Blower system (IN MOST STOVES). The switch is normally “Closed” allowing the passage of electricity from the control board to the auger motor. When a set amount of Negitive or positive pressure (depending on stove) is detected, due to a restriction or blockage to airflow, the diaphragm is moved to the “Open” position; power is cut to the auger motor stopping fuel to the grate. If this condition occurs, inspection of the stoves vent system is recommended. Some stoves the Ignitor circuit is also connected to the vacuum switch. First check to see of all Doors and Ash pan doors are latched tight and getting a good seal. Check that the flue is clean an clear of obstructions Check that all ash traps are clean and clear Check that your combustion blower is working Electrically check the switch by disconnecting the brown and white wires from the switch. Attach a voltmeter set for “continuity” detection. The switch should show continuity (CLOSED) with the orange hose disconnected from the Combustion Blower housing. When the hose is connected back to the blower (power “ON”) if a
reading of “Open” is indicated, the vent needs inspection. With power “OFF” and
the hose disconnected, you can gently blow into the hose and cause the switch to
OPEN. When blowing into the hose stops, the switch should CLOSE.
This test indicates proper switch operation. If this switch fails or the hose is bad, You can by-pass this switch by connecting the two wires together and your stove will work normally.
HIGH LIMIT & INLET AIR SNAP SWITCHES
PN 12147705 Function: Surface mounted switches that watch for excessive heat conditions. Both locations use the same switch. Their mounting locations (see Service & Maintenance – Safety Switches) are based on each switch’s responsibility of heat monitoring. They are normally “Closed” switches. These switches have no electrical connection to the Combustion Blower system. BLOWER HIGH LIMIT DISC - Monitors temperatures on the firebox convection jacket and is designed to detect an over fire condition. It controls power available to the Feed System. If tripped “Open” power is lost to the Feed System. Inspection of the convection air paths, the blower voltage output readings, the integrity of the blower motor and all wiring is recommended. All ash collection points within the stove should be checked to remove any obstructions. INLET HIGH LIMIT DISC -Monitors temperatures below the grate and in the inlet air path and is designed to detect reverse flow (caused from negative pressure – tight houses which may not supply adequate combustion and ventilation air.) It controls power available to the Feed System. If tripped “Open” power is lost to the Feed System. Inspection of ash collection points within the stove should be checked to remove any obstructions. Check the switch for continuity. Apply heat to the bottom of the switch and it will “Open”. Remove heat and it will “Close”.
Wire diagram for Advantage Series stoves with Touch pad control board
Wire
diagrams
(large 3mg file has hand written notes) go here for Maintenance tipsWhitfield Trouble ShootingThis help file will help Diagnose most Whitfield pellet stoves. Warning, this is
for your information only!
|
