• Installation •
XIb Troubleshooting — procedures
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
Never jumper (bypass) any device except for momentary testing as outlined in Troubleshooting charts. Severe personal injury, death or substantial property damage can result.
The control module and boiler controls can malfunction if they get wet. Never try to use a control that has been flooded or wet. Replace it. Failure to comply can result in severe personal injury, death or substantial property damage.
Before troubleshooting:
1.Have a voltmeter that can check 120 VAC and 24 VAC and a continuity checker.
2.Check for 120 VAC (min.
3.Make sure thermostat is calling for heat and contacts (including appropriate zone controls) are closed. Check for 24 VAC between thermostat wire nuts and ground.
4.Have an inclined manometer with 0 – 2" w.c. range.
Check the following:
1.Wire connectors to control module are securely plugged in at module and originating control.
2.Hoses are properly and securely plugged in and are not damaged.
VERIFY PROPER OPERATION AFTER SERVICING.
Part number | 67 |
