HTP PH130-80S - Part 5: Troubleshooting

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PART 5: TROUBLESHOOTING
NATURE OF TROUBLE
POSSIBLE CAUSE
SERVICE
No hot water
1. No power – blown fuse or
circuit breaker tripped
a. Shorted wiring
b. Circuit overloaded
c. Improper wiring
d. Grounded element or
thermostat
a. **Replace or repair
b. **Provide adequate circuit or
reduce load
c. **Rewire per diagram
d. **Replace
2. Manual reset limit (ECO) open
a. Thermostat defective
b. Thermostat out of calibration
c. Heat build-up due to loose
wires
d. Defective limit (ECO)
Refer to “Operation” Section
a. **Replace
b. **Lower setting or replace
c. **Tighten wire connections
d. **Replace
3. Solar system incorrectly
installed
**Check installation
4. Leaking plumbing or open hot
water faucet(s)
Make sure all faucet(s) are
closed and check water meter
Not enough hot water
1. Heater undersized
Reduce rate of hot water use
2. Defective thermostat or wired
incorrectly
**Check wiring or replace
3. Solar system incorrectly
installed
**Check installation
4. See #4 above (in No hot
water)
See above
Water too hot or not hot enough 1. Thermostat setting too high or
low
Change setting as required
2. Thermostat out of calibration
**Replace
3. Solar system incorrectly
installed
**Check installation
4. Grounded element
**Replace
Table 1
**For your safety, DO NOT attempt repair of electrical wiring, thermostat or operating controls. Refer
repairs to qualified service personnel.