Tanning Bed Timer Not Working? Remote Timers, T-Max Controllers and In-Bed Timers

When the timer acts up, the bed is fine and you still cannot sell a session on it. Nothing lights until the timer says so, and nothing should stay lit after it says stop. Timer problems come three ways: the session will not start, runs short, or will not end. Each points somewhere different, and the first thing to settle is whether the fault is the timer, the wiring between timer and bed, or the bed itself.

The three kinds of timer

• In-bed timers. A mechanical dial or digital keypad on the bed itself. Common on home beds and older salon beds.
• Remote timers. One timer per room, on the wall or at the desk, wired to that bed.
• Salon controller systems. A manager unit at the front desk talks to a small in-room unit at each bed over low voltage cable. T-Max style systems are the common example. The desk sends the session, the in-room unit counts it down and closes a relay in the bed.

In every case the timer's job is simple: close a relay or contactor so power reaches the ballasts, and open it when time is up. Keep that picture in mind and the troubleshooting gets easier.

1. Session will not start

Start at the desk and work toward the bed.

1. Confirm the controller has power and the session went to the right room. Basic, and the fix more often than anyone admits. A dead display at the desk means the controller's power supply, not the bed.
2. Check for a delay or a lockout. Most systems have a programmable delay so the client can undress, and a cool-down lockout between sessions. A bed sitting in a five minute delay looks like a bed that will not start. So does a room in lockout.
3. Check the settings. A maximum session time set to zero, a room disabled on the manager, or a time sent above the room's maximum will all refuse to start. Settings change by accident after a power outage or a new employee's first week.
4. Look at the cable. Controller systems run on small modular cable, often daisy chained room to room. One pinched cable, loose plug or corroded connector takes out every room downstream. Reseat every plug. If several rooms died at once, the cable is the suspect, not the beds.
5. Use the manual start. Most beds on a remote system also have a start button or manual mode at the bed. If the bed runs from that, the bed and its relay are fine and the fault is the timer, cable or settings. If it will not, you are into the bed, and our won't-turn-on checklist picks up from there.

2. Session runs short

Here the key is whether the display stops early too.

• The display stops early. That is the timer. Check the programmed session length and the room's maximum time. A mechanical dial that runs fast or sticks has a worn motor and is replaced, not repaired.
• The display keeps counting but the lamps go out. That is the bed. It is cutting itself off, almost always a thermal cutoff tripping because dirty filters, a slow or seized fan, or a blocked vent let it overheat. Clean the filters and check every fan is spinning. Our fans and cooling page covers the common replacements. A relay with pitted contacts can also drop the lamps while the timer runs on, which shows as lamps that cut out and sometimes come back.

3. Session will not stop

This one cannot wait. If the timer reaches zero and the lamps stay on, kill the power at the breaker and put a sign on the door. Almost every time, the contacts inside the relay or contactor have welded closed from years of switching a heavy load. The timer opens its side of the circuit and nothing happens, because the relay no longer moves. The timer is not in control of the bed any more. Do not run it with a staff member watching the clock, and do not pull the plug mid-session as a workaround. Replace the relay. It is a quick job for a technician, and relays and the common in-room units are on our timers and controls page.

4. Wiring between the timer and the bed

On remote and controller systems there are two circuits: the low voltage signal cable from the desk or wall to the bed's timer interface, and the line voltage wiring from the relay to the ballasts. The signal side is owner-friendly. Reseat plugs, look for cable crushed under a bed foot or chewed by a vacuum, and swap in a known-good cable from another room. The line voltage side is not. If the in-room unit counts but the bed does not respond and will not run from its manual start, the fault is at the relay or beyond, and that is where we come in.

When to call

You can safely check power at the controller, the settings, delay and lockout, the signal cable, and the manual start at the bed. Once the problem lands on the relay, the timer interface board inside the bed, or anything on the line voltage side, stop. Call too if a mechanical in-bed timer runs fast or slow, since a timer that overruns is a liability and we replace those rather than clean them. On the call we ask what timer system you have, what the display does when you send a session, and whether the bed runs from its manual start. Three answers and we usually know which part to bring.

Safety

Power off and unplug the bed before opening any panel. The relay and ballast compartment carry line voltage, and capacitors in magnetic ballast beds can hold a charge after the power is off. Never bypass the timer, jumper a relay, or run a bed without a working timer, even for one session. Never defeat a thermal cutoff to stop a bed shutting down early. A timer that cannot end a session is a bed out of service until it is fixed.

Related guides

• Tanning bed won't turn on: the salon owner's checklist
• Tanning bed fuse keeps blowing: where to look first
• Can a tanning bed be fixed over video?
• Tanning bed parts we stock