48

Possible Causes

• •Broken or loose switch leads
• •Control plugs not fully seated
• •Exhaust temperature switch S5 malfunction
• •Faulty K5 relay operation
• •Faulty customer input connections
• •Faulty exhaust temperature switch S5
• •Faulty genset control PCB
• •Field resistance open to ground
• •Grounded or shorted quad windings
• •Improper K5 relay operation
• •Improper field resistance
• •Improper field resistance reading (open to ground)
• •Improper raw water flow
• •Overload Condition
• •Poor brush condition and contact
• •Quad leads not fully seated in connector to control
• •Restricted or incorrect raw water flow

Suggested Actions

1. 1Check K5 relay operation (if equipped)
2. 2Check broken or loose switch leads
3. 3Check brush condition and contact
4. 4Check control plugs fully seated
5. 5Check customer input connections
6. 6Check exhaust temperature switch S5
7. 7Check field windings
8. 8Check for broken or loose switch leads
9. 9Check grounded or shorted quad windings
10. 10Check proper field resistance reading, open to ground
11. 11Check quad leads fully seated in connector to control
12. 12Check raw water flow
13. 13Replace the genset control PCB

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