Medium
Process:
This is for a Mr. Heater MH1000ID indirect diesel heater, made by Enerco similar to HeatStar model HS1000ID.
I had to test the following items:
1. Low-temperature thermal cut-off switch
2. High-temperature thermal cut-off switch
3. Fuel lines
4. Fuel pump
5. Fuel pump solenoid
6. Fuel nozzle
7. Ignitors
8. Air pressure sensor
9. Photocell
After everything was said and done, the reason the heater wasn't working was two-fold:
1. The fuel filter INSIDE of the fuel pump was clogged
2. The ignitors were dirty and misaligned
It took me quite a while to go through everything but I was glad that it was just some cleaning that had to be done. Having said that, the diagnostics would have cost me close to $350 bucks so I'm glad I ventured into trying to fix it myself
Videos:
Pictures:
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| The heater when I first got it |
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| Specs of the heater |
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| The insides of the heater |
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| The diesel fuel pump |
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| Close-up of the fuel nozzle and the ignitors |
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| The fuel filter housing with the missing fuel filter |
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| Running the heater |
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| After the flue was painted |
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| Flue gases vented outside |
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| Close-up of air-gapped exhaust flue |
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| Outside view of air-gapped flue |
Tools:
Screwdriver
Cordless drill
Wrenches
Pliers
Scotch-brite abrasive pads
Materials:
N/A
Cost:
$0.00
Time:
5 hrs
Savings:
$1000
Conclusion:
It works great. Now I just have to figure out how to deal with the exhaust gas flue
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