Why Your Spa May Continue Heating Even When the Price Limit Is Exceeded

How the Price Limit Works

The price limit in SpaPilot is designed to control when heating is allowed to start based on electricity price.

In Planner modes, heating normally starts only when:

• the water temperature is below the target temperature, and

• the current electricity price is at or below the configured price limit.

If the electricity price is above the limit, SpaPilot will normally delay heating until a cheaper hour becomes available.

Important Principle

The price limit controls when heating can start, but it does not interrupt an active heating cycle.

This means that if heating has already started during a cheaper electricity period, the heating cycle may continue even if the price later rises above your configured limit.

This behavior helps prevent frequent start and stop cycles and allows the spa to maintain a stable temperature.

Situations Where Heating May Still Occur

There are some situations where heating may continue even if the electricity price is above the configured limit.

This behavior is expected in certain conditions.

Filtration Cycles

Spa controllers sometimes allow heating during filtration cycles.

Filtration cycles are part of the spa’s normal water maintenance process and help maintain water quality.

Because these cycles are controlled by the spa controller itself, heating may occur during filtration even if the electricity price is above your configured limit.

Instant Heating Mode

If Instant Heating is activated, SpaPilot will temporarily ignore the price limit.

This allows the spa to heat immediately regardless of electricity price.

This feature is designed for situations where you want the spa ready quickly.

Maintaining Temperature Stability

In some situations the spa temperature may remain stable even when the electricity price is above the configured limit.

This can happen when:

• the spa controller completes a heating cycle

• residual heat remains in the system

• short heating pulses occur during internal controller operations

These small adjustments help maintain stable water temperature.

What Happens When You Change the Target Temperature

If you increase the target temperature manually, the system may begin heating immediately depending on the active heating mode.

Manual actions may temporarily override price-based restrictions to ensure the spa responds to the user’s request.

When to Check Your Settings

If you believe the spa is heating too frequently above your price limit, check the following:

• confirm that Instant Heating is not active

• verify your maximum price setting

• review your Planner mode settings

Refreshing the app can also help ensure the latest device status is displayed.

Summary

SpaPilot uses your configured electricity price limit to decide when heating should start.

However, heating may still occur in certain situations such as:

• ongoing heating cycles that started during cheaper electricity hours

• filtration cycles controlled by the spa controller

• Instant Heating mode

• internal controller heating behavior

These behaviors help ensure proper spa operation while still prioritizing energy-efficient heating.