M151 hot water heater blower motor help

[lilmonce]

Hello ya all. I have been readin posts here for a while, just joined recent.
Lookin for some help.

Took the crazy train and decided to install a HW heater in my 151a2. I got an NOS complete kit. installed everything except the main heater unit thinkin I would test the blower before I bolted it all in and hooked it all up.
new blower motor is not kickin on.
squirrel cage isn’t spinnin. Won’t kick on. Shaft turns free, and not frozen. I Checked the volts in the cable that runs over to the blower from the switch and it’s got 18.5v. The 34-1 says that’s the minimum.
so I’m wonderin?
1. Any way to get inside this unit? I see the waterproof connection on the motor.
2. Does this motor need to be mounted to work?
3. I’m sure it’s possible the NOS blower motor is not good but that seems remote the way this thing was packed.

Anyway, hopin someone has an idea for a fix or somethin I’m missin or had a similar issue and can lend an idea

thanks

steveo
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[FilBonica]

Is the housing properly grounded?
Fil Bonica

 

[lilmonce]

Is the housing properly grounded?
Fil Bonica

Thanks for the response:
FilBonica
By grounded are you meanin bolted into the housing, truck dash and floor bracket?
I did not see a separate ground wire in the 34 manual or I’m the kit instructions.

 

[FilBonica]

Is the motor mounted in the vehicle?
If not then ground it to complete circuit.
Fil Bonica

 

[lilmonce]

Is the motor mounted in the vehicle?
If not then ground it to complete circuit.
Fil Bonica

Thanks for the help.

Yea it’s mounted in the vehicle.

 

[FilBonica]

Can you apply 24 volts directly to the motor?
This will assure it is not the wiring in the jeep.

Fil Bonica

 

[lilmonce]

Can you apply 24 volts directly to the motor?
This will assure it is not the wiring in the jeep.

Fil Bonica

Yea I will do that tomorrow.
I’ll pick up another battery cause I got one thats weak. I’ll make sure it gets 23-24v.
right now Its only showin 18v. Minimum require per the 34 but hopin that’s it.

 

[FilBonica]

Replace both batteries at one time.
You will get better performance and life .
Make sure the charging system is working.
Fil Bonica

 

[FilBonica]

Battery voltage should be around 24 volts standing.
and around 28 volts with the engine running.
Anything less may need adjusting.
18 volts nothing will work.

Fil Bonica

 

[lilmonce]

Replace both batteries at one time.
You will get better performance and life .
Make sure the charging system is working.
Fil Bonica

thanks Fil. I will. My plan is to do that today.

steveo

 

[lilmonce]

2 new R batteries…..works perfect.
thanks for the help.
hope to return the favor to ya.

steveo

 

[FilBonica]

What size did you get?
Fil Bonica

 

[BKubu]

Kudos. That is a tough install from what I've heard.

 

[lilmonce]

Kudos. That is a tough install from what I've heard.

550cca

 

[FilBonica]

What Group?

FilBonica

 

[lilmonce]

What size did you get?
Fil Bonica

They are 51’s

 

[FilBonica]

I have battery mounting brackets available if you need them.
Fil Bonica

 

[lilmonce]

Kudos. That is a tough install from what I've heard.

yea it never had a heater before so I picked up and NOS complete kit.
used the 34 and the packet that came with the kit. Havin both worked out good. Cuttin for the air intake and where to put all the wires.
It’s a slow process. But if you follow the manual step by step it worked out. I tried to put the drivers side diverter and the defroster vent in as a unit…… nope…, So just follow line by line. No short cuts really.
only real pain is If ya got big hands.

 

[lilmonce]

I have battery mounting brackets available if you need them.
Fil Bonica

thanks Fil. I’ll think about that. Mine are old

 

[FilBonica]

These are the correct size fo 51R batteries N ot 2HN.
Send your email and will send pics.
Fil Bonica