TROUBLE SHOOTING THE GAS CONTROL SYSTEM
HONEYWELL MILLIVOLT VALVE
START
|
|
|
|
|
|
|
|
|
|
|
|
|
| CHECK |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
• GAS SUPPLY ON |
|
|
| NO |
|
|
|
|
| • SUPPLY LINE HOOKED UP | ||||
|
|
|
|
| ||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| • SHUTOFF VALVE OPEN |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| • LOCKOUT HAS ENGAGED. WAIT |
YES |
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
| 60 SECONDS AND TRY AGAIN. | ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • FOR SPARK AT ELECTRODE |
|
|
|
|
|
|
|
|
|
|
|
|
|
| WHILE DEPRESSING PIEZO |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| — 1/8" GAP TO |
PILOT LIGHTS WITH |
|
|
|
|
|
|
|
|
|
| ||||
|
|
| NO |
|
|
|
|
|
| PILOT HOOD NEEDED. | ||||
PIEZO IGNITOR |
|
|
|
|
|
|
| • ALL WIRING CONNECTIONS | ||||||
|
|
|
|
|
|
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| • REPLACE PIEZO IGNITOR |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
YES |
|
|
|
|
|
|
|
|
|
| • FOR AIR IN THE LINES | |||
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • THERMOPILE NEEDS A |
|
|
|
|
|
|
|
|
|
|
|
|
|
| MINIMUM 325mV. ADJUST |
|
|
|
|
|
|
|
|
|
|
|
|
|
| PILOT FLAME HEIGHT. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • ALL WIRING CONNECTIONS. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
PILOT STAYS LIT |
|
|
| NO |
|
|
|
|
| • REPLACE THERMOPILE | ||||
|
|
|
| |||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| • THERMOCOUPLE NEEDS A |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| MINIMUM OF 14mV. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • DEFECTIVE VALVE. TURN TO |
|
|
|
|
|
|
|
|
|
|
|
|
|
| PILOT, METER SHOULD READ |
|
|
|
|
|
|
|
|
|
|
|
|
|
| GREATER THAN 100 mV. IF |
YES |
|
|
|
|
|
|
|
|
|
| NOT, REPLACE. | |||
|
|
|
|
|
|
|
|
|
|
|
|
|
| • VALVE IS TURNED ON |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • ON/OFF SWITCH IS NOT |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| TURNED ON. WATCH |
PILOT LIGHTS MAIN |
|
|
| NO |
|
|
|
| ||||||
|
|
|
|
|
|
| FOR GROUNDED WIRES! | |||||||
BURNER |
|
|
|
|
| |||||||||
|
|
|
|
|
|
|
|
|
| • THERMOPILE NEEDS A | ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| MINIMUM 325mV. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| • PLUGGED BURNER ORIFICE. |
YES |
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
SYSTEM OK. |
|
|
|
|
|
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- 15 -