AERCO Innovation (G-10-1350 to G-11-0563) - Manual (Page 57)

Chapter 5 Innovation Series Water Heaters
GF-128
Safety Device Testing USER MANUAL OMM-0079_0B
07/21/11 AERCO International, Inc.
· 100 Oritani Dr. · Blauvelt, NY 10913 · Ph: 800-526-0288
Page 57 of 200
5.11 IGNITION SWITCH OPEN DURING IGNITION
The Ignition Switch (and the Purge Switch) is located on the Air/Fuel Valve. To check the switch, proceed
as follows:
1. Set the unit’s ON/OFF switch to the OFF position.
2. Place the unit in Manual Mode and set the valve position between 25% and 30%.
3. Remove the Air/Fuel Valve cover (Figure 5-5) by rotating the cover counterclockwise to unlock and lift
up to remove.
4. Remove one of the two wires (#169 or #170) from the Ignition Switch (Figure 5-8).
5. Initiate a unit start sequence.
6. The unit should begin it’s start sequence and then shut down and display IGN SWITCH OPEN
DURING IGNITION.
7. Replace the wire on the Ignition Switch and press the CLEAR button. The unit should restart.
Figure 5-7. Typical Air/Fuel Valve Cover Location
Figure 5-8. Air/Fuel Valve Purge and Ignition Switch Locations