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Old 10-19-2021, 12:18 PM   #1
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Location: Riverside, Ca.
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CAT engine heater

I have a 2006 winnebago journey with CAT C7, and the engine block heater doesn't seem to be working. Is there a fuse that goes to the heater?
2006 Journey 36G
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Old 10-19-2021, 12:29 PM   #2
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You probably already know this but it might be worth mentioning. On my coach, I also have a 110v outlet in the engine compartment that the heater needs to be plugged into before you turn on the switch. I also have a breaker for that outlet.
2008 Beaver Contessa 40' Pacifica 425 Cat
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Old 10-19-2021, 12:34 PM   #3
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My Newmar , has a dedicated circuit breaker in the 120 volt panel for the block heater .

When I replaced my block heater, after finding the circuit breaker tripped and the heater shorted , I posted this info .
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
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Old 10-19-2021, 12:39 PM   #4
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Yes, it is 120 VAC. Likely a separate breaker in the 120 VAC breaker panel. May be a switch at the base of the bed. Others have a switch on the dash to turn it on.

Likely an outlet in the front of the engine bay with the block heater plugged into it.
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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Old 10-19-2021, 12:41 PM   #5
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Easy check.....take an extension cord and plug it directly into the block heater. Take a temp measurement and then another one a couple of hours later. If the temp increases, you have a power issue. If it doesn't the block heater may be dead.

Some model coaches use just an outlet in the engine compartment. Simply plugging in the block heater turns it on. Some have a switch on a panel that turns a circuit on and some have a dedicated circuit breaker being used as a "switch" if you leave the bock heater always plugged in.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
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Old 10-20-2021, 01:20 AM   #6
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In our 04 Journey, engine heater plugs into an outlet in the shore power cord compartment near the top right ght. You canít see it, but itís there.
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cat, engine, heat, heater

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