Operating instructions

AVR Pellet Control Board
Installation/Service Instructions 250-00011
Page 3 of 10 Printed 1/23/06
Diagnostic Codes (Qualified Service Personnel Only)
• Fault and #2 (LOW) Light Flash = Flow Switch Fault
• Fault and # 4 (MED) Light Flash = System Snap Disk Fault (pellets run out & stove goes cold)
• Fault and # 6 (HIGH) Light Flash = Safety or Hopper Snap Disk Fault
HIGH
DISCONNECT POWER BEFORE SERVICE
REMOTE
AUTO
MANUAL
H
E
A
T
O
U
T
P
U
T
MED
LOW
AUGER
FAULT
# 6 Light
# 2 Light
# 4 Light
Flow Switch Fault
Fault light and #2 heat indicator blinking.
This fault code indicates pressure/flow switch opened or broke its electrical connection during operation.
Likely causes:
• Pinched, cracked or broken pressure tubing.
• Plugged tubing nipple on blower housing.
• Heavy ash build up in the exhaust fan housing,
• Faulty wiring, bad or broken connection of flow switch gray wires.
• Weak or bad combustion blower
• Faulty pressure switch.