EnergyLogic EL-140H, Installation & Operation Manual, Page: 75 / 96

9.3 Testing Procedures
Only qualified servicemen are to perform the testing procedures. Many of the
tests involve high voltage electricity, which if mishandled may cause serious injury or death.
9.3.1 Wall Thermostat Testing (Standard T-Stat – White)
Tools Needed:
Digital Multi-Meter
Wall Thermostat Function:
Monitors the temperature of the room and compares it to the set desired temperature. When
the room temperature falls below the desired, it sends a signal (by closing a switch providing
continuity) to the primary controller initiating the call for heat.
Note: During this test, if the thermostat does not function as stated, call Technical Services for
assistance, or Customer Service to order a new thermostat.
Procedure:
1. Disconnect the Thermostat wires from the burner by removing the T-Stat plug (see
image below) and verify the pins on the plug and receptacle are straight and secure.
2. If the system has a Fuel Low Cutoff Switch
a. Verify the fuel level in the tank is above the switch float. If not, then remedy.
b. Check for continuity across the wires of the float switch.
If no continuity, remove the fuel switch and verify when the float is in the up
position, the continuity status. No continuity = replace switch, Continuity =
check fuel status
3. Set the thermostat to a temperature higher than the current reading.
4. Using the ohm meter, connect the leads to each of the T-Stat wires at the plug.
5. You should see continuity across the leads, check the wire connections at the
thermostat and recheck.
Thermostat Cable
Connector
69
Call 1-615-471-5290 for Technical Support