The heat light turning red is normal during heating operation on smart control models. This normally occurs 10-15 seconds after engaging the heater. You should notice the temperature of the spa water rising 1-2 degrees per hour

The heat light turning red is normal during heating operation on smart control models. This normally occurs 10-15 seconds after engaging the heater. You should notice the temperature of the spa water rising 1-2 degrees per hour when the heat light is red. Once the heater reaches its set temperature, the heater light will turn green, meaning it is not engaged but is in standby mode to heat when the water temperature falls below the set temp.On Frame series units with a top panel, the heater icon will be solidly lit when heating and will blink once set temperature is reached, showing that the heater is not engaged but is in standby mode.Please note that the unit will actually heat the water temperature approximately .5C OVER the set temp to create a small buffer so the heater is not constantly engaged to maintain the set temperature.

Heat Light Turns Red

Portable Spas Help Centre

Why is my heater light red and not green?

Heat Light Turns Red After 10-15 Seconds

General Questions

Fencing Requirements

Fencing

Setup FAQs

Frequently Asked Setup Questions

Portable Spas are NOT compatible with Silver Products

Silver Products

E1 and F1 Errors

Error Codes

Why Is My Filter Icon Flashing?

Filter Light Is Flashing

Filter Cleaning And Replacement

Older Spa Models and 120 Pleat Filters

Filter Maintenance

Unit is Running But Not Heating

Unit Not Heating

Why Is My Control Unit Displaying Three Dashes?

Three Dashes

Blanking Error

Display Goes Blank

Spa is Deflating

Spa has a leak or puncture

WiFi App Connection Issues

Can My Spa Control Unit Be Upgraded To WiFi?

WiFi

Why Do None Of The Buttons On My Spa Controller Work?

Child Safe Mode

Camaro Cover Lid Will Not Zip

Camaro Cover Zipper Not Working

Bubbler Times Out

Bubbler Not Working After 20 Minutes

What Is Limescale and How To Avoid It

Limescale

Water Care Guide

Chemicals

Warranty Information and How To Return Your Control Unit

Warranty Information

How To Operate The Heating Timer

The Spa Timer

Pairing the Remote with the LED Light Strip

Cannot Turn On or Control Lights

When Should You Use The UVC and Ozone Functions?

Ozone And UVC

Can I run my Portable Spa on an extension lead?

Extension Leads

How Much Should My Spa Running Costs Be?

Daily Running Costs

Insect and Rodent Mayhem

Insects and Rodents can Wreak Havoc on Control Units