At a Glance
At a Glance
Preview
The Canarm H0502 replacement thermostat is the original part that controls the activation of your waterer's heating element. A faulty thermostat can cause the waterer to freeze or lead to excessive electricity consumption—replacing it promptly protects your herd and your budget.
Main features
- Precise temperature control — activates heating only when needed
- Prevents freezing — ensures that water remains accessible even at -30°C
- Avoid excessive electricity consumption — a faulty thermostat can heat continuously
- Compatible with H and HL series — original part ref. H0502
- Easy replacement — accessible via the hinged lid of the drinking trough
Specifications
| Part number | H0502 |
| Compatibility | Canarm H and HL series waterers |
| Old reference | HLW-20 |
| Function | Thermostatic control of the heating element |
| Kind | Original replacement part |
| Brand | Canarm |
CANARM - Replacement Thermostat for Heated Drinker, H0502
- Regular price
- $69.95
- Sale price
- $69.95
- Regular price
-
CANARM - Replacement Thermostat for Heated Drinker, H0502
Secure checkout • 30-day returns
Disponibilité en magasin
Les niveaux de stock peuvent changer rapidement. Appelez le magasin pour confirmer.
Frequently Asked Questions
How do I know if the thermostat on my Canarm waterer has failed?
The thermostat (H0502) controls when the heating element activates. A failed thermostat is the second most common cause of waterer problems after element failure. Diagnosis:
- Element runs constantly: If the indicator light is always on and the water is noticeably warm even in mild weather, the thermostat may have failed in the closed (always-calling) position. This wastes electricity and can shorten element life.
- Element never runs: If the indicator light is off and the water is freezing, but the element tests good (correct resistance on a multimeter), the thermostat has failed in the open (never-calling) position.
- Inconsistent behaviour: Intermittent freeze events that come and go suggest the thermostat is at the end of its service life and losing calibration.
To confirm thermostat failure: with the unit at operating temperature, use a multimeter to measure continuity across the thermostat terminals. A functioning thermostat in cold conditions should show continuity (closed circuit). No continuity in cold conditions = failed thermostat.
What temperature does the Canarm H0502 thermostat activate at?
The Canarm H0502 thermostat is factory-calibrated to activate (close the circuit and energize the heating element) at approximately 2°C (35°F). This is the temperature at which water is at immediate risk of beginning to freeze, making this the optimal activation point for energy efficiency — the element only runs when actually needed.
The thermostat deactivates when the water temperature rises above approximately 8–10°C. The differential between on and off temperatures prevents rapid cycling that would shorten element life.
Note that air temperature around the waterer is not the same as the water temperature inside the bowl. In a well-insulated barn at -10°C, the water inside the bowl may remain above 2°C for extended periods without the element running — this is normal and by design.
Is the H0502 thermostat compatible with both H and HL series Canarm waterers?
Yes — the Canarm H0502 replacement thermostat is compatible with both the H series and HL series steel heated waterers. These include the H50, H100, and their HL variants.
It is not designed for use in the polypropylene P-series waterers (P25, P50, P100), which use a different thermostat specification. If you have a P-series waterer, refer to your installation manual or the data plate on your unit to identify the correct thermostat.
