Frontier Oil Heat – PN 10-2021 – October 2021 - 26 -
Additional Manager Tests
Perform the following tests ONLY if you have any of the following:
Case 1) Zones heating intermittently
Case 2) E140 or E150 displayed WITHOUT a burner lockout
Case 3) E100 or E190 displayed
If you have a burner lockout, troubleshoot as any conventional burner lockout.
Case 1: Zones heating intermittently
Step 1: Have all connected thermostats including hot water aquastat call continuously for at least 10 minutes.
Service Switch must be ON. Turn burner switch off to prevent zone overheating and to maintain thermostat
calls continuously.
Step 2: Observe thermostat Lights.
If any thermostat input lights (left side) are not ON, check wiring and thermostats.
If thermostat input light (left side) is OFF within 10 minutes, and with thermostat call present, thermostat
input LED is bad. Solution: Move thermostat wire lead and zone valve wire lead to a different zone or
replace manager.
Case 2: E140 or E150 alert without burner lockout
Step 1: Turn service switch OFF and disconnect right hand (output) quick-connector.
Step 2: Using a multi-meter, check the resistance from B1 to B2 on the manager solder strips. This will be an open
circuit (infinite resistance).
Step 3: Turn service switch ON and start a thermostat call while observing the resistance from B1 to B2. Burner light
should come on.
If resistance is less than 3 ohms, manager is functioning properly. Look elsewhere for a problem.
If resistance is greater than 3 ohms after 3 seconds of operation, B1-B2 contact is bad. Solution: Replace
manager.
Case 3: E100 or E190 alert without burner lockout
Step 1: Check the sensor wiring and quick-connectors to ensure proper contact. To improve contact, remove and
squeeze the plastic quick connect at all terminals with flat pliers so the gap just closes.
Step 2: Replace sensor if no wiring or quick-connector issues are identified.
To Next Page
Loading...
Need help?
General
