Gaymar TP500
Gaymar · Model TP500
Heat Therapy System Supplies a temperature controlled flow of heated water through a set of hoses to a pad, which is then applied to patients for the purpose of warming.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Water not reaching set temperature
HighSymptoms: Pad stays cool, long warm-up, over/under-temp condition, thermostat cycling wrong.
Root cause: Failed heater element, drifted thermostat / temperature sensor, or a control fault.
No or weak circulation
HighSymptoms: Pad warms unevenly, low or no flow at the outlet, pump noisy or silent.
Root cause: Worn circulation pump, low reservoir level, air lock, or an occluded pad/hose.
Reservoir or hose leak
MediumSymptoms: Water under the pump, falling reservoir level.
Root cause: Cracked reservoir, worn hose connectors, or a punctured pad.
Over-temperature safety trip / power switch fault
MediumSymptoms: Unit shuts down and will not restart, large power switch not latching.
Root cause: Over-temp cutout activated, or the large power switch worn (noted in the manual title).
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Circulation pump
Class Periodic replacementRel. cost $$$R&R Difficult
Heater element
Class Major service partRel. cost $$R&R Moderate
Thermostat / temperature sensor
Class Periodic replacementRel. cost $R&R Moderate
Power switch
The large power switch is a known wear point on early units.
Class Major service partRel. cost $R&R Fairly easy
Hoses and therapy pad
Class Frequent wear itemRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Circulation pump | Periodic replacement | $$$ | Difficult |
| Heater element | Major service part | $$ | Moderate |
| Thermostat / temperature sensor | Periodic replacement | $ | Moderate |
| Power switch The large power switch is a known wear point on early units. | Major service part | $ | Fairly easy |
| Hoses and therapy pad | Frequent wear item | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: T/Pump not heating properly
- Never run powered tests with the reservoir empty - fill first.
- Perform the manual's functional check in order; measure water temperature against the set point.
- Isolate heater element vs thermostat/sensor with resistance measurements.
- Replace the failed element or thermostat.
- Complete the FUNCTIONAL CHECK and SAFETY INSPECTION and document on the inspection form before returning to patient use.
Symptom: Poor circulation to the pad
- Verify the reservoir level and bleed any air.
- Check the hoses and pad for kinks and leaks.
- Listen to the pump; replace it if it will not move water.
- Confirm a temperature and flow difference between the two hoses.
- Re-run the functional check after repair.
Technical Specs
- Weight
- 2 oz
Documents & Manuals
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