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No.
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TROUBLESHOOTING ITEM
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ACTION
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1
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Fuel odor
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• Inspect the water heater system in the vehicle fuel system.
• Inspect the fuel line for leakage, kinks, or blockage.
• If normal, there is an internal water heater leak.
-
- Replace the water heater unit.
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2
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The heater does not achieve full load operation
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• Replace the water heater unit.
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3
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Continuous white smoke during combustion operation
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• Replace the water heater unit.
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4
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Loss of coolant (leakage). Heater develops smoke during combustion operation; smell of exhaust fumes extremely sweet
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• Inspect the coolant hose for leakage, kinks, looseness, and loose hose clamps.
• If normal, there is an internal water heater leak.
-
- Replace the water heater unit.
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5
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Loss of fuel (leakage)
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• Inspect the water heater system integration in the vehicle's fuel system.
• Inspect the fuel line connections for leakage.
• If normal, there is an internal water heater leak.
-
- Replace the water heater unit.
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6
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The water heater unit does not communicate with the SST (WDS or equivalent)
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• Refer to section T, ON-BOARD DIAGNOSTIC [MULTIPLEX COMMUNICATION SYSTEM].
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