Repair manual

RD 27 Troubleshooting the Water Spray System
wc_tx001224gb.fm 85
7 Troubleshooting the Water Spray System
Best practice The best practice when troubleshooting this system is to:
1. Isolate and check each component of this system individually.
2. When a malfunctioning component is found, repair or replace it.
3. After replacing a malfunctioning component, retry system operation.
This chapter provides procedures to check the components.
7.1 Determining Where to Begin
Prerequisites Before doing any in-depth troubleshooting on the water spray system, be sure that:
 The water filter is clean
 The spray nozzles are clean
 There is water in the water tank.
If the above criteria are being met and there is still a problem, continue.
Problem
categories
Problems with the water spray system can be categorized as:
 Problems with the continuous water spray
 Problems with the intermittent water spray
Follow the steps below for your particular situation.
Diagnosing the continuous water spray:
Diagnosing the intermittent water spray:
Step Task See Topic
1. Check the water spray fuse. 7.2
2. Check power to the spray pump motor. 7.3
3. Check the spray switch. 7.4
Step Task See Topic
1. Check the water spray fuse. 7.2
2. Check the spray pump motor. 7.3
3. Check the spray switch. 7.4
4. Check the timer module. 7.5
5. Check the spray relay. 7.6