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Pitco 60125501 Thermopile, Millivolt
Sku: 60125501
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Regular price
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$105.00 USD
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Sale price
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$105.00 USD
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Regular price
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Availability : In Stock
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Pitco 60125501 Millivolt Thermopile
The Pitco 60125501 thermopile converts heat from the pilot flame into a small electrical millivolt signal. That signal powers or supports the safety circuit on millivolt-style commercial fryer controls. Unlike a powered electronic control, a thermopile system depends on flame heat to generate enough voltage to hold the gas safety valve open and allow the fryer to continue operating.
In a Pitco fryer, the pilot flame heats the thermopile junction. The thermopile produces millivolts, and that output is used by the gas valve and safety circuit. If the flame is weak, the thermopile is dirty, the tip is not positioned correctly, or the thermopile is failing internally, the valve may not receive enough signal to stay open. The operator sees a pilot that lights but drops out, or a fryer that cannot bring on the main burner.
Failure Symptoms Technicians See
- Pilot flame lights but goes out when the safety knob is released.
- Millivolt output is below the range needed to hold the gas valve.
- Fryer pilot stays lit cold, then drops out after vibration or heat cycling.
- Main burner will not energize because the safety circuit is not satisfied.
- Thermopile tip is carboned, corroded, or not fully engulfed by flame.
- Loose safety-valve terminals reduce millivolt signal under load.
Diagnostic Approach
Technicians diagnose a thermopile by measuring open-circuit and loaded millivolt output while the pilot flame is properly adjusted. The pilot flame should be blue, stable, and wrapped around the sensing tip. Related components include the pilot burner, pilot orifice, gas safety valve, high-limit circuit, thermostat, and wiring terminals. If the flame is correct but millivolt output remains low, replacing the thermopile is appropriate.
FAQ
What does Pitco 60125501 do?
It generates a millivolt signal from pilot flame heat for the fryer safety/gas-control circuit.
Why will the pilot not stay lit?
The thermopile may be weak, but pilot flame quality, gas valve condition, and connections must also be checked.
How is it tested?
With a meter reading millivolts, both unloaded and under the safety-circuit load.
What related parts should be inspected?
Pilot burner, pilot orifice, gas safety valve, high-limit, thermostat, and terminal connections.
Related resources
- Regular price
- $105.00 USD
- Sale price
- $105.00 USD
- Regular price
-
- Unit price
- per