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Ask Hank F. Your Own Question
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14533
Experience:  Certified on Onan and Generac generators
19372534
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I have a 55221 14 kw generac that is hard to start in

Customer Question

i have a 55221 14 kw generac that is hard to start in cod weather. it has a battery warmer and a crank case heater. lp gas 75 feet away
Submitted: 10 months ago.
Category: Small Engine
Expert:  Hank F. replied 10 months ago.

Hello, my name is ***** ***** I am going to assist you with this.

What is the serial number of the genset?

Customer: replied 10 months ago.
Expert:  Hank F. replied 10 months ago.

Ok, you didn't specify how cold "cold" was. LP is not the most efficient of fuels, and is a very temperature dependent fuel.

The colder it is, the less reliable LP is.

Another factor is using too small of a tank, and/or the tank being too empty.

Assuming the temps you are describing are not below about 20 degrees, you have a minimum of a 250 gallon tank, and it is at least 1/4 full, then the problem is likely in the genset itself.

Are the block and battery warmers actually working?

When was the last time this unit had a good tune up?

Is the choke working properly? To check, remove the air filter cover, and set the switch to MANUAL. The choke should close for 2 seconds, open for 2 seconds, close for 2 seconds and so on, until the engine starts.