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servtech50
servtech50, commercial refrigeration-expert
Category: General
Satisfied Customers: 16
Experience:  been in the field of commercial refrigeration for over ten years and in the field for hvac for over 20 years.
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I inherited a Manitowoc Q130 from my father. I sat, unplugged

Customer Question

I inherited a Manitowoc Q130 from my father. I sat, unplugged for 5 years. I did a quick cleaning and plugged it up. Seemed to make all the right noises and dropped 3 batches of ice, then just quit. I did some research and thought it must be a safety limit #2. So today, armed with an array of tools and cleaners, I set to work. Cleaned, removed a mummified mouse and her nest, plugged it up, and....nothing. Thought the on/off switch was bad, but the green light is lit. No sounds from compressor or fan. Would low refrigerant cause this?
Submitted: 1 year ago.
Category: Refrigeration
Expert:  shaithus1 replied 1 year ago.
Hi.. no... the machine would still run....clean and check the water inlet valve to ensure no stoppage...First thing I would check is the bin switch to ensure the machine does not think its full.. I have to assume that this is not a water cooled model...if it makes no noise at all...meaning no water flow, no pump noises ect....first check bin switch, then check to see if voltage at water inlet valve, if not then it is not calling for water to fill or there is a failure.. ensure the float is down if there is no water in the trough.. if it is down then there should be continuity at that point.. if not, float is bad... I would suggest you could go to parts towns website and enter make model and down load the service manual...its all free... as you know the unit should fill with water, run water over the plates and cool the plates until the ice thickness probe is touched by ice then it drops.. and begins again... until the bin switch is satisfied...let me know what you find on the bin switch and water float switch...Phillip
Expert:  shaithus1 replied 1 year ago.
it is also possible that the start components are dead on the compressor...but what lights do you have visible on the control panel...
Customer: replied 1 year ago.

I should have been more specific...I connected it to water supply. The trough fills up and the float cuts it off. The water does not get pumped over to the evaporator though, evaporator doesn't get cold, fan doesn't kick on. Its as if I forgot to plug it in, except the (green) bin switch light is on. The (red) harvest light is not on or flashing at all.

Expert:  shaithus1 replied 1 year ago.
the harvest light wont come on till the unit makes ice and is ready to dump it... pump is not working, fan doesn't work, compressor appears to not be working.. everything operates off the control board... that is the common problem...if the unit was pumping and plates did not get cold, then compressor issue.. if plates cold no water, then pump issue... it no water then float or inlet valve issue... you get the point... check to see If you have voltage at the pump.. if you do, bad pump...if you don't and all else is not working...I would say you have a bad board....there is a fuse on that board.. I would check that. .but if it is blown..something took it out...phillip