“These tanks are already low maintenance, so the responsiveness of the Grimm staff is just a bonus.”

Ken Blood
Head Athletic Trainer
Muskingum University


These online tools allow you to identify problems and potentially return your systems to operational efficiency. As always, our team is here to help you when you need us.

Problem: Nothing happens when Power switch is switched “On”

Possible Cause: 

  • Power cord unplugged.
  • GFCI breaker tripped.

Problem: CRYOTherm won’t cool or heat

Possible Solution: 

  • Check that the water supply is on, then press and hold (for 3 seconds) the start button on the Electronic Unit Controller shown below.
  • Check that both pumps are on and pumping water.

grimm scientific cryotherm hydrotherapy grimm tub controler

Problem: Cloudy water

Possible Solution: 

  • Check filter cartridges.

Problem: Impaired water circulation

Possible Solution: 

  • Check pump suction fittings for debris.
  • Check filter cartridges.

Problem: Warm tank not holding temperature

Possible Solution: 

  • Check heater reset button.