OJ ELECTRONICS MWD5-1999-R3C3 Voice Thermostat Instructions

OJ Electronics MWD5-1999-R3C3 Voice Manual: Questions and Answers

OJ Electronics MWD5-1999-R3C3 Voice specifications

Full specifications, page 13

Where is the power button located on the OJ Electronics thermostat?

On the front cover. Slide it down to turn the thermostat off. Instructions, p. 9

Can the OJ Electronics MWD5-1999-R3C3 Voice thermostat control heating systems other than underfloor heating?

No. The thermostat is designed specifically for electrical underfloor heating control. Instructions, p. 13

Why does my OJ Electronics MWD5-1999-R3C3 Voice heating system shut off?

The heating switches off when the sensor is disconnected or short-circuited.

• Check if the built-in sensor is defective or short-circuited (error code E1)
• Check if the external sensor is disconnected, defective or short-circuited (error code E2)
• Reconnect the sensor if it came loose, or replace it if damaged Instructions, p. 11

What do the ON/OFF switch and power slide button do?

The ON/OFF switch on the left side controls power: up is ON, down is OFF. The power slide button, when set to On, activates the Installer Wizard for initial setup on first connection. Instructions, p. 10

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