Specifications

053 – FLAME LOSS DURING START
1. See Code 52
054 – FLAME CUTOUT IN BOOST MODE
1. Heater has started successfully but the ame has extinguished.
2. Inspect and or replace fuel lter on inlet side of fuel pump, see page 24 (maintenance).
3. Check fuel supply/measure fuel quantity.
a. Disconnect the fuel line from the heater.
b. Turn the unit on (remember 60 second delay prior to pump activation).
c. Place the fuel line into the graduated cylinder and allow to run through a rst start attempt.
d. Once the fuel pump stops running from the rst start attempt turn the unit off.
e. The measured fuel must be between 8.5 to 9.5 milliliters
f. If the reading is high and the pump angle is veried correct (15-35), replace the pump, clear the codes, run the unit, and restart trouble-shooting.
g. If the reading is low, inspect all fuel line connections to see if the lines have a crisp cut on the end. Inspect fuel pick-up pipe for any obstructions.
h. If not fault is found on the inlet line and pick-up pipe operate the fuel quantity test from an external fuel source.
4. Check exhaust and combustion air intake lines (maintenance).
a. Low spots
b. Crushed or kinked piping
c. At least a 45 degree downward angle in exhaust piping
5. Test ame detector, see page 19.
056 - FLAME CUTOUT IN LOW MODE
1. See Code 054
060 - OPEN CIRCUIT – TEMPERATURE SENSOR
1. Temperature sensor detects a value beyond its range, > 2 M Ω
2. Check electrical connections at 14 pin connector for corrosion
3. Check resistance between terminal #’s 11 & 12 of 14 pin connector
061 - SHORT CIRCUIT – TEMPERATURE SENSOR
1. Temperature sensor detects a value beyond its range, < 50 Ω
2. Check resistance between terminal #’s 11 & 12 of 14 pin connector
i. If found OK, disconnect terminal 11 and retest
1. If Code 60 is displayed, replace sensor
2. If Code 61 is displayed replace control unit
064 - OPEN CIRCUIT – FLAME SENSOR
1. Flame sensor detects a value beyond its range, > 3040 Ω
2. Check resistance between terminal #’s 1 & 2 of 14 pin connector
065 - SHORT CIRCUIT – FLAME SENSOR
1. Flame sensor detects a value beyond its range, < 780 Ω
2. Check resistance between terminal #’s 1 & 2 of 14 pin connector
i. If found OK, disconnect terminal 1 and retest
ii. If Code 64 is displayed replace sensor
iii.If Code 65 is displayed replace control unit
071 - OPEN CIRCUIT – OVERHEAT SENSOR
1. Flame sensor detects a value beyond its range, > 2 M Ω
2. Check resistance between terminal #’s 9 & 10 of 14 pin connector
090 – CONTROL UNIT DEFECTIVE **
091 - EXTERNAL VOLTAGE DISTURBANCE ** (MAINTENANCE)
1. Check vehicle charging system. Poor battery, battery charger, eliminate fault
092 - 103 CONTROL UNIT DEFECTIVE **
The EW14 Warranty Process requires Edith extraction printouts to record codes before proceeding with repairs – and after the repair steps
listed in this manual are completed.
For your warranty claim to be paid you must document the Complaint, Cause and Correction steps in your warranty claim write-up.
** Disconnect heater from power for 10 seconds by disconnecting the 14 pin connector at the heater or pull the 20 amp fuse. Reconnect and test again. If the
problem persists, test the heater using an external power source other than the vehicle (known good battery only). These faults are common to a bad power
supply, attached charger or dead cell in a battery.
1. If problem persists install test control unit, clear codes and run unit.
i. Contact tech support at 1-800-387-4800.
REVISION LEVEL A - 12/09/13
5
Fault Code / Troubleshooting
14
PLEASE NOTE!